Too much pretense. Both males and females pretending to be someone they are not to please people they don't even like.
As a JW you can't truly know a perspective mate with other people always around. The other person will be in constant 'guarded' mode so as to appear spiritual to the third party.
Also, too, the indoctrination is so overwhelming, there should be a warning that the GB controls the vertical and the horizontal. Your prospect has no mind of their own.(Something that God didn't even require of that douche bag Satan)